From 9ed44bb209d0ece90abb6b4279d8b18e17680476 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Tue, 10 Nov 2015 18:57:23 +0100
Subject: [PATCH] serial: sh-sci: Correct SCIF type on R-Car for BRG
The "renesas,scif" compatible value is currently used for the SCIF
variant in all Renesas SoCs of the R-Car family. However, the variant
used in the R-Car family is not the common "SH-4(A)" variant, but a
derivative with added "Baud Rate Generator for External Clock" (BRG),
which is also present in sh7734.
Use the family-specific SCIF compatible values for R-Car Gen1, Gen2, and
Gen3 SoCs to differentiate. The "renesas,scif" compatible value can
still be used as a common denominator for SCIF variants with the
"SH-4(A)" register layout (i.e. ignoring the "Serial Extension Mode
Register" (SCEMR) and the new BRG-specific registers).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/sh-sci.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 5b8504bfd42e..a202e4e40b8a 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2625,6 +2625,17 @@ static const struct of_device_id of_sci_match[] = {
.compatible = "renesas,scif-r7s72100",
.data = SCI_OF_DATA(PORT_SCIF, SCIx_SH2_SCIF_FIFODATA_REGTYPE),
},
+ /* Family-specific types */
+ {
+ .compatible = "renesas,rcar-gen1-scif",
+ .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+ }, {
+ .compatible = "renesas,rcar-gen2-scif",
+ .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+ }, {
+ .compatible = "renesas,rcar-gen3-scif",
+ .data = SCI_OF_DATA(PORT_SCIF, SCIx_SH4_SCIF_BRG_REGTYPE),
+ },
/* Generic types */
{
.compatible = "renesas,scif",